In a 2008 Email Consumer Survey, 4 out of 10 respondents said that they had reported legitimate email ( that they had signed up for!) as SPAM.
“ Spam has increased by over 141% since March 2009.”
“ Spam volumes grow by over 117 billion e-mails a day.”
Return Path "Top Email Trends in 2009" (2010)
Why You Need to Do It RIGHT “ ISP’s such as Yahoo, AOL and Gmail all use the percentage of people who hit the "report spam" button as the No. 1 gauge in considering whether to deliver incoming email to users' inboxes or not.” “ A complaint rate higher than 0.5% will have serious delivery issues.” - Direct Magazine (2007)
Too many Spam complaints or bounced emails, and Internet Service Providers will block not only your own email messages, but your entire domain .
Top 5 Reasons Email Recipients Hit the 'Spam' or 'Junk' Button
“ 75% of daily social media users said email is the best way for companies to communicate with them, compared to 65% of all email users.” “ 49% of Twitter users said they made an online purchase because of an email, compared to 33% of all email users.” - MarketingSherpa (2010)